Popular examples of OTC drugs include pain relievers such as acetaminophen (Tylenol) and ibuprofen (Motrin, Advil), cough suppressants like dextromethorphan (Robitussin) and antihistamines such as loratadine (Claritin 24H). 

https://recoverypartnernetwork.com/drug/opioid/over-the-counter-substance-abuse